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Re: 3D reconstruction of volume

Posted by Joel Sheffield on Oct 25, 2007; 2:29pm
URL: http://imagej.273.s1.nabble.com/3D-reconstruction-of-volume-tp3698102p3698110.html

David,

Here's another idea.  What would happen if you invert the images?  
That is, use Edit>Invert to convert the dark pixels to light ones,
and vice versa.  You could then reconstruct that volume, in which the
nuclei would dominate, and merge it with one from the original
images.  I have done something like this with brightfield images of
H&E stained tissue. You can see an example on our department's home
page:  www.temple.edu/biology.

Joel
 

Date sent:       Thu, 25 Oct 2007 06:56:38 -0500
Send reply to:   ImageJ Interest Group <[hidden email]>
From:           vbindoka <[hidden email]>
Subject:         Re: 3D reconstruction of volume
To:             [hidden email]

> David,
> You could draw a ROI ( wedge) from the interior outward and clear the
> ROI (option to do so for entire stack). This way it looks like a cut pie
> upon 3D projection.  You could play with opacity and surface/interior
> weights to emphasize the inner features, though I've not had great
> success this way. You should also try the Volume Viewer/3D Slicer and/or
> VolumeJ plugins that can perform this type of rendering option (ROI not
> required). Animating a series of XZ or YZ reslice projections would show
> what you want to show, too.
>
>
> David Knecht-charter wrote:
> > We are trying to make volume projections of some confocal z slices
> > through a cell.  There is cytoplasmic label and some concentrated
> > membrane labeling.  There are also large vacuoles and the nucleus
> > where there is no label.  Is there any way to get those black holes in
> > the cytoplasm to show up as defined structures in the projections?  
> > They are obscured by the cytoplasmic label in a standard projection
> > because they are of much lower intensity.  If you try to project just
> > hte lower intensity values, they are obscured by the fact that the
> > extracellular background is equally black.  Any ideas?  Thanks- Dave
> >
> >
> > Dr. David Knecht
> > Department of Molecular and Cell Biology
> > Co-head Flow Cytometry and Confocal Microscopy Facility
> > U-3125
> > 91 N. Eagleville Rd.
> > University of Connecticut
> > Storrs, CT 06269
> > 860-486-2200
> > 860-486-4331 (fax)
>
> --
> __
>
> Vytas Bindokas, Ph.D.
> Research Assoc. / Assoc. Prof.,
> Director, BSD Light Microscopy Core Facility
> Dept Neurobiol Pharmacol Physiol MC0926
> 947 E 58th Street
> The University of Chicago
> Chicago IL 60637
> Room Abbott 120
> 773-702-4875
>
> email [hidden email]
>  web site for LMCF:
> http://digital.bsd.uchicago.edu/index.html 
>
>
>
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Joel B. Sheffield, Ph.D
Department of Biology
Temple University
Philadelphia, PA 19122
Voice: 215 204 8839
e-mail: [hidden email]
URL:  http://astro.temple.edu/~jbs